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F = ma (Final Problems)
Dynamics
FMA-2018B-25 · 2018B F = ma (AAPT)

2018 F = ma Exam B — Question 25

A student is measuring the surface area of a cylindrical wire. The student measures the radius of the wire to be 1±0.1 cm using a ruler and the length of the wire to be 1.00±0.01 m using a meter-stick. The precision of their result can be increased in several ways. 1: Upgrade the ruler to a caliper with uncertainty 0.01 cm. 2: Upgrade the meter-stick to a tape measure with uncertainty 0.001 m. 3:
Source: Question 25, 2018 F = ma Exam B, © 2018 American Association of Physics Teachers (AAPT) and the U.S. Physics Team. Adapted by PhysicsTrainer: reformatted into a separate question and answer choices for online multiple-choice practice; any shared setup from nearby questions is repeated here. Not affiliated with or endorsed by AAPT or the U.S. Physics Team.